I am unable to siege the elven town of Illas Tort'ra. I am a desert orc, have declared and it shows "at war", and I get the siege icon. The game continues on to the splash screen as if it is about to set up the battle, then It hangs up, and causes me to have to end task through task manager. I have made approximately 7 attempts at this, on different days, and different times. I am still in the fight the elves quest line (fairly deep in i'd say, and they don't seem to end), and it did let me siege the city of Gelmeerim in Tortas as part of the quest and it properly shows allied to me.

I do not know if I am getting blocked because this is maybe reserved as a future "quest siege" or if it is a true bug...